dendrite

Effect of Time and Space Condition on Transition between Cell and Dendrite during Crystal Growth

时空条件对枝胞转变的影响

Soma and dendrite of NOS neurons were similar in each group.

各组大鼠一氧化氮合酶阳性神经元的胞体和树突均相似.

The experimental results showed that the microstructure of Cu 26.6wt% Mn alloy changed from cellular to dendrite, super fine cellular and segregation free solid with the increase of growth rate;

实验结果表明，重熔区组织较基体组织大大细化；随着生长速度的增大，Cu26.6wt%Mn合金的组织由低速胞晶向枝晶、高速胞晶及完全无偏析固溶体转变。

Solute diffusion controlled solidification model was applied to simulate the initial stage cellular to dendrite transition of TiAl alloys during directional solidification at different velocities.

利用溶质扩散控制模型对TiAl合金定向凝固初始阶段变速过程中胞晶／枝晶转变进行了数值模拟。

In the condition of oil wet, the micro-residual oil exists in block like dendrite-residual oil forms.

油湿条件下, 微观剩余油以连片的枝状剩余油形成存在.

The dendrite growth direction is changed and dendrites are curved in the zone of white band.

白亮带处的枝晶生长方向改变而生成弯曲的枝晶.

The difference of composition between dendrite and matrix glass depends on the formation temperature and mechanism.

枝晶形成时存在两种机制,其生长基元分别为原子(分子)生长或晶核切变生长.

The microstructures of repaired region are planar crystal, cellular crystal, dendrite crystal, equiaxed crystal and columnar crystal from the transition region to the top cladding layer.

修复区中，从过渡区到堆焊层的组织结构变化为由平面晶过渡到胞晶、树枝晶、等轴晶及柱状组织。

Under the condition of semisolid state, when there are many original crystal grains,α-Mg grew mainly by means of cling to crystal grains. But when the fraction of liquid phase was high, α-Mg grew in the form of dendrite crystal.

在半固态条件下，当原始固相晶粒较多时，初晶α相的生长方式表现为依附生长为主：当浆料中液相率较高时，初晶α相主要以树枝晶方式生长。

Crystals in developed dendrite with part orientation have inferior property than the former.

发达树枝晶生长的样品,轴向<112>择优取向程度减弱,磁致伸缩性能下降.

Such changes influence the dendrite structure of matrix, precipitation, solute segregation, interface reactivity, solidification defects etc.

从而对基体组织的形态 、 二相析出 、 溶质偏聚 、 界面反应性 、 凝固缺陷等产生重要影响,最终影响复合材料的性能.

The directional growth under different undercooling was analyzed on the foundation of free dendrite growth theories ( LKT/ BCT).

并采用过冷熔体枝晶生长（BCT）模型对不同过冷度下出现的定向生长行为进行了分析。

The effect of counterpressure casting parameters on secondary dendrite arm spacing ( SDAS ) of A 357 alloy was studied.

研究了差压铸造不同工艺参数对A357合金二次枝晶间距的影响.

It is got from the stretching fracture that the main function of the austenite dendrite crystal during the course of fracture is to stop the spread of the crack, increase the energy needed for fracture, and improve the cast-iron bars' strength. 5.

从拉伸断口可以得出：奥氏体枝晶在铸铁型材的断裂过程中主要表现为阻止裂纹扩展的作用，增加断裂所需的能量，提高铸铁型材的强度。

When the addition of RE is small, α-Al phase is in the form of cellular dendrite.

当混合稀土加入量较少时，合金中的αAl相为明显的胞状枝晶；

The phase field method can directly simulate the dendrite growth during metal solidification.

相场法可以直接模拟金属凝固过程中枝晶生长的形成过程.

The influence of the disturbing and anisotropy on dendrite growth has been investigated.

研究了噪声和各向异性等参数对晶粒形貌的影响.

The more deformation rate, the more the original dendrite got broken or got plastic deformation.

随着形变率的增加，发生塑性变形利脆断的原始枝晶数餐增加。

With increasing tin ion additive, zinc dendrite was dramatically inhibited.

随着锡离子添加剂含量的增加, 锌枝晶被显著抑制.

Calculation of kinetics of the dendrite tip growth was done according to the model of KGT.

枝晶尖端生长动力学用KGT模型进行计算；

In the final fracture region, dendrite fracture is the main fracture mode for both specimens.

两者的瞬断区均以枝晶断裂方式为主。

Coupling macro-transfer model of continuous casting with micro-characteristics of dendrite crystal solidification

耦合枝晶凝固微观特性的连铸宏观传输模型

The simulated results of dendrite microstructure and particle distribution are in good agreement with the experimental.

模拟得到的颗粒分布及微观组织与实验结果吻合较好.

Numerical Simulation of Cellular/ Dendrite Arm Spacing Selection During Unidirectional Solidification of Ti-Al Alloy

Ti-Al合金定向凝固过程中胞/枝晶间距选择的计算机模拟

A branching , treelike shape or arrangement , as that of the dendrite of a nerve cell.

(神经学)属于 、 关于或类似于树突神经细胞中一种树枝状细胞质突起的.

The results show that, after laser surface processing, a melt layer with cellular dendrite structure is formed, which could transform into very fine grained structure during the annealing treatment.

结果表明，激光处理后试样表面熔凝区的组织主要为胞状枝晶组织，经后续热处理可转变为细小的等轴晶粒组织，并形成了良好的超塑连接条件。

It was found that mechanical vibration with increasing frequency increased combustion temperature, combustion rate and reaction transformation rate, promoted Al 2O 3 Fe liquid liquid phase gravitational separation and ceramic densification, and made Al 2O 3 dendrite crystal be changed in size and growth orientation.

研究发现，机械振动并相应提高振频可以提高燃烧温度、燃烧速率和反应转化率，促进Al2O3Fe液相重力分离和陶瓷致密过程，并使陶瓷层的凝固组织发生改变；

In this paper, free dendrite growth behaviors in undercooled melts are simulated using phase field method.

通过自适应有限元法求解相场模型, 对过冷熔体中自由枝晶生长行为进行了数值模拟.

In microstructure simulation, the nucleation adopts the continuous nucleation model based on Gaussian distribution, and the growth adopts the KGT model to calculate the dendrite tip growth rate.

在微观计算中，形核模型利用基于高斯分布的连续形核模型计算，生长模型利用KGT模型计算枝晶尖端生长速率。

The phases of dendrite crystal in repaired region consist of supersaturated α′-Co containing plenty of Ni. Cr. Al.

修复区的相结构中，枝晶骨架主要是过饱和的α-Co，并溶有大量的Ni及一定量的Cr和Al；